Bell-tube for lanterns.



W. G. EMBURY.

BELL TUBE FOR LANTERNS.

APPLICATION FILED DEO.8,19'0B.

919,145. Patented Apr. 20, 1909.

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UNITED STATES PATENT OFFICE.

WILLIAM G. EMBURY, OF ROCHESTER, NEW YORK, ASSIGNOR TO EMBURY MANUFACTURING 1 00., OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

BELL-TUBE FOR LANTEBNS.

To all whom it may concern:

Be it known that 1', TILLIAM C. EMBURY, a resident of Rochester, in the county of Ivionroe and State of New York, have in- 5 vented certain new and useful Improvements in BelLTubes for Lanterns; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to tubular lanterns, and particularly to the bell tube and its construction, the object being to simplify and improve the construction and manufacture thereof.

The invention consists in the construction hereinafter described and particularly pointed out.

In the accompanying drawing which illustrates the invention and forms a part of the specification ;F igure 1 shows a blank for making the tube; Fig. 2 is an end view of the blank when partly formed into shape; Figs. 8 and iare, respectively, side and end views of the tube complete.

Numeral 1. denotes a blank of sheet metal cut as shown with two substantially rectangular end portions, and an integral intermediate narrower portion 2, the edges of this part being curved inwardly at 3 and slightly outwardly at 4. At the outer corners of the rectangular portions notches 5 are cut.

The described blank, by suitable forming tools, is first given the shape indicated in Fig. 2, that is, said end portions are bent into semi circular form longitudinally, and given edge folds adapted to engage to form a joint when opposite edges are brought together. The intermediate narrower part is bent to bring the two semi circular parts together edge to edge, and the edges are joined by compression or otherwise, and a complete tube results with two straight, opposite, side seams, and closed at the top without a seam,

and having a smooth, finished appearance. The curved contour of part 2, when the blank is bent as described forms circular openings (3 to receive the side tubes of a lantern in manner well known in the art.

Specification of Letters Patent.

Application filed December 8, 1908.

Patented April 20, 1909.

Serial No. 466,547.

The notches 5 cause the side seams to terminate a little short of the end of the tube, and this is for the purpose of leaving the end free to be bent for connection with the usual bell, which would be interfered with if the seams extended to the end.

I am aware that heretofore bell tubes have been made from a blank approximately rectangular, and having two wings extending from the upper end thereof and having curved edges, suchblank being formed into a tube with one side seam, and the said wings connected by a top seam to close the upper end of the tube. My construction has the advantage of dispensing with the inconvenient top joint, and the blank is easier formed and shaped.

Having described the invention what I claim is 1. A blank for bell tubes of tubular lanterns having two substantially rectangular end portions each adapted to form a half tube, and an intermediate narrower portion of such length that when transversely bent it will close the end of the tube forming two side openings, as described.

2. A blank for bell tubes having two substantially rectangular end portions with notched outer corners, and an intermediate narrow portion with curved edges as described.

3. A bell tube formed of a blank having two substantially rectangular end portions, and an intermediate narrower portion, said end portions being bent into semicircular shape and joined at opposite edges, and the intermediate portion bent transversely to its length to close the top of the tube and form side air tube-receiving openings, as described.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

\VILLI All C. EMBURY.

Vitnesses E. E. EMBURY, M. B. WVALKER. 

